+#include "common.h"
#include <atomic>
#include <cds/gc/dhp.h>
#include <cds/gc/hp.h>
-#include <cds/sync/mcs-lock.h>
+#include <cds/misc/mcs-lock.h>
#include <cds_test/stress_test.h>
#include <iostream>
+#include <memory>
#include <thread>
using namespace std;
namespace {
+static size_t s_nMCSLockThreadCount = 4;
+static size_t s_nMCSLockPassCount = 3000000;
+
class MCSLockTest : public cds_test::stress_fixture {
protected:
- static int x;
+ static ullong x;
static cds_others::mcs_mutex *my_mutex;
- static const int kThreads = 6;
- static void SetUpTestCase() {}
+ static void SetUpTestCase() {
+ cds_test::config const &cfg = get_config("Misc");
+ GetConfig(MCSLockPassCount);
+ GetConfig(MCSLockThreadCount);
+ }
static void Thread() {
cds_others::mcs_mutex::guard g(my_mutex);
- x = 1;
my_mutex->unlock(&g);
- for (int i = 0; i < 10000; i++) {
- for (int j = 0; j < 300; j++) {
- my_mutex->lock(&g);
- x = i + j;
- my_mutex->unlock(&g);
- }
+ for (ullong i = 0; i < s_nMCSLockPassCount; i++) {
+ my_mutex->lock(&g);
+ x++;
+ my_mutex->unlock(&g);
}
my_mutex->lock(&g);
}
};
-int MCSLockTest::x;
+ullong MCSLockTest::x;
cds_others::mcs_mutex *MCSLockTest::my_mutex;
-const int MCSLockTest::kThreads;
TEST_F(MCSLockTest, BasicLockUnlock) {
my_mutex = new cds_others::mcs_mutex();
- std::thread threads[kThreads];
- for (int i = 0; i < kThreads; i++) {
+ x = 0;
+ std::unique_ptr<std::thread[]> threads(
+ new std::thread[s_nMCSLockThreadCount]);
+ for (size_t i = 0; i < s_nMCSLockThreadCount; i++) {
threads[i] = std::thread(Thread);
}
-
- for (int i = 0; i < kThreads; i++) {
+ for (size_t i = 0; i < s_nMCSLockThreadCount; i++) {
threads[i].join();
}
+ if (x != s_nMCSLockPassCount * s_nMCSLockThreadCount) {
+ cout << "MCS lock incorrect\n";
+ }
}
} // namespace